Finding the Fourth Proportional to 71,384.07, 98,509.32 and 39,118.98

Step by Step Solution

1. Step 1: Write the proportion equation
   71,384.07 : 98,509.32 = 39,118.98 : x
2. Step 2: Convert to fraction form
   71,384.07/98,509.32 = 39,118.98/x
3. Step 3: Cross multiply
   71,384.07x = 98,509.32 × 39,118.98
4. Step 4: Simplify right side
   71,384.07x = 3,853,584,118.89
5. Step 5: Solve for x
   x = 3,853,584,118.89/71,384.07
6. Step 6: Final answer
   x = 53,983.81